3M™ Insulating Spray is a fast-drying, high-dielectric insulating coating designed to protect electrical and electronic components from moisture, dust, corrosion, and environmental contamination. It forms a durable, flexible insulating layer that helps prevent short circuits, improves insulation performance, and extends the service life of electrical equipment. Ideal for use on PCBs, electrical terminals, coils, transformers, switchgear, motors, and other electrical assemblies.
Description
3M™ Insulating Spray is a premium-quality electrical insulating coating formulated to provide reliable dielectric protection for electrical and electronic components. It creates a tough, flexible, and transparent insulating film that protects against moisture, humidity, dust, chemicals, corrosion, and environmental contaminants while maintaining excellent electrical insulation properties.
The spray is ideal for preventive maintenance, repair, and refurbishment of electrical equipment. It helps prevent leakage current, flashover, short circuits, and corrosion, thereby improving equipment reliability and extending service life. Its fast-drying formulation ensures quick application with minimal downtime, making it suitable for both field maintenance and workshop use.
Key Features
High dielectric strength for reliable electrical insulation
Fast-drying, transparent protective coating
Excellent resistance to moisture, humidity, dust, and corrosion
Flexible and durable coating that resists cracking and peeling
Good adhesion to metals, plastics, glass, ceramics, and electrical components
Easy aerosol application for uniform coverage
Suitable for indoor and outdoor maintenance applications
Applications
Electrical panels and switchgear
Transformers and reactors
Electric motors and generators
Printed Circuit Boards (PCBs)
Control panels and junction boxes
Terminal blocks and busbars
Coils, relays, solenoids, and windings
Industrial automation equipment
Electrical connectors and cable terminations
Preventive maintenance of electrical and electronic systems
Benefits
Prevents electrical leakage and short circuits
Protects against corrosion and environmental damage
Improves insulation reliability
Extends equipment life
Reduces maintenance costs and downtime
Enhances operational safety in electrical installations
Specifications
- Dielectric Strength (V/mil)-850
- Tack Free Time 77°F (25°C)-15 minutes
- 40°F (4°C)-30 minutes
- Gardner Impact Strength (in-lbs.) -60
- Hardness (pencil)-4B
- Propellant-Iso-butane and propane
- % Solids-15% (approximately)
- Solvents-Xylene, M.E.K., Acetone
- Base-Alkyd Resin
- Flash Point - -50°F (-46°C)
